improve state handling of obfsvpn

• improve state handling of obfsvpn
• make obfsvpns start method blocking so that we can either handle errors and abort a VPN connection attempt or wait until obfsvpn is in a running state before we start openvpn to connect to obfsvpn for transparent proxying the traffic
• try to restart obfsvpn in on different proxy port in case the default one is already bound

related to leap/android_libs/bitmask-core-android!12 (merged) and obfsvpn!79 (merged)

More generally this MR reduces the amount of cases where obfsvpn gets into a unusable state after changing settings such as locations or obfuscation settings while the VPN is running. In those cases sometimes the VPN constantly failed to re-connect and only killing and restarting the app resolved the issue.

changed milestone to %2025.04 LEAP VPN Release

assigned to @cyberta

marked this merge request as draft

added 2 commits

• cd5e8da3 - obfsvpn client: use constant for running state
• 9c987c8e - rename log prefix from 'obfs4-client' to 'obfsvpn-client'

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added 12 commits

• 9c987c8e...0024333a - 8 commits from branch master
• fe9609d1 - improve state handling of obfsvpn; try to restart obfsvpn in on different...
• 764b27ce - update bitmask-core-android, include obfsvpn updates for better state handling
• d604e0e7 - obfsvpn client: use constant for running state
• f6d9b959 - rename log prefix from 'obfs4-client' to 'obfsvpn-client'

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added 1 commit

• 733a2527 - update bitmask-core-android, obfsvpn and bitmask-core improvements

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added 1 commit

• 96ed81af - update bitmask-core-android, obfsvpn and bitmask-core improvements

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added 1 commit

• fcb3b143 - fix mock test implementation of BitmaskMobileCore interface

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added 2 commits

• e2d7b1a2 - always close obfspvn client first, then stop running openvpn process
• 3e2850f8 - update VPN state to 'NOPROCESS' (not running) if starting obfsvpn fails while...

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marked this merge request as ready

enabled an automatic merge when all merge checks for 3e2850f8 pass

merged